Hard Rock Mining | Proposed Bond Determination for MB MT Acquisitions, LLC – Hidden Lake Quarry- Moonlight Basin – PERMIT NO. 00165 | Comment Period Closes October 23, 2026
DEQ is seeking public comment on a proposed comprehensive bond determination increase of $1,882 (from $108,105 to $109,987) at the Hidden Lake Quarry near Big Sky, in Madison County.
Location: Madison County
45.305440, -111.464352
Associated Materials:
Comment Period Closes: October 23, 2026
Submit Comments To: DEQHardRock@mt.gov
Millie Olsen
Hard Rock Mining Section Supervisor
Mining Bureau
Department of Environmental Quality
P.O. Box 200901
Helena MT 59601
Tags: Public Comment and Hard Rock